40143271 has 8 divisors (see below), whose sum is σ = 45926784. Its totient is φ = 34371960.

The previous prime is 40143269. The next prime is 40143277. The reversal of 40143271 is 17234104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40143271 - 2¹ = 40143269 is a prime.

It is a super-2 number, since 2×40143271² = 3222964413158882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40143277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5676 + ... + 10606.

It is an arithmetic number, because the mean of its divisors is an integer number (5740848).

Almost surely, 2^40143271 is an apocalyptic number.

40143271 is a deficient number, since it is larger than the sum of its proper divisors (5783513).

40143271 is a wasteful number, since it uses less digits than its factorization.

40143271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6101.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 40143271 is about 6335.8717632225. The cubic root of 40143271 is about 342.4030194101.

Adding to 40143271 its reverse (17234104), we get a palindrome (57377375).

The spelling of 40143271 in words is "forty million, one hundred forty-three thousand, two hundred seventy-one".